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Finding the Fourth Proportional to 18,479.32, 25,500.04 and 10,519.96

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Solution

The fourth proportional to 18,479.32, 25,500.04 and 10,519.96 is: 14,516.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.32 : 25,500.04 = 10,519.96 : x
  2. Step 2: Convert to fraction form
    18,479.32/25,500.04 = 10,519.96/x
  3. Step 3: Cross multiply
    18,479.32x = 25,500.04 × 10,519.96
  4. Step 4: Simplify right side
    18,479.32x = 268,259,400.80
  5. Step 5: Solve for x
    x = 268,259,400.80/18,479.32
  6. Step 6: Final answer
    x = 14,516.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.